Hello guys, Im really grateful to be able to tap into your combined knowledge-bank. I recently picked up a 1975 6hp Evinrude (model 6504 R, serial # J0014363) and because I was uncertain as to its condition I started working on it. I replaced the impeller, set the point gap, replaced the lower case oil, put in new pugs and ran it for a bit. It was running a bit rough so I started tinkering with the rich/lean setting. Anyhow, I read somewhere that sediments can build up in the bowl and that the easy way to check that is to remove the Packing-Nut and needle from the float chamber and drain it of any fuel and built up sentiments, so that is what I did. The packing nut must have been brittle because when I went to reinstall it the threaded part that screws into the float chamber just snapped off under almost zero pressure. After kicking and cursing myself for an hour I got down to the business of buying a rebuild kit and also picking up a replacement packing nutÃÂ, and that is where I have a big problem.
According to the Boats dot net diagram my carb is supposed to look like this: http://www.boats.net/parts/search/BRP/EVINRUDE/1975/6504R/CARBURETOR/parts.html but my carb looks more like this: http://www.boats.net/parts/search/BRP/EVINRUDE/1975/4506A/CARBURETOR/parts.html the big difference being that the original carburetor (which I obviously do noÃÂt have) simply has a plug in the float chamber where as the carb I have has a high-speed needle valve assembly. But here is the thing; this needle valve and assembly is small, like 1 ü inches long. Where as the one in the above link is large, in fact both the needles are the same size because they use the same packing-nut. I have pictures but when I try to upload them I'm told that the file is invalid,,,any suggestions on how I can get them to you???.
The number on the float chamber cover reads 310771 and under this number is the number 2. Im hoping one of you gurus can tell me what carb I have (and what year and model evinrude it iÃÂs from) so that I can order a rebuild kit and a new packing nut.
Many, many thanks in advance,
Bill
According to the Boats dot net diagram my carb is supposed to look like this: http://www.boats.net/parts/search/BRP/EVINRUDE/1975/6504R/CARBURETOR/parts.html but my carb looks more like this: http://www.boats.net/parts/search/BRP/EVINRUDE/1975/4506A/CARBURETOR/parts.html the big difference being that the original carburetor (which I obviously do noÃÂt have) simply has a plug in the float chamber where as the carb I have has a high-speed needle valve assembly. But here is the thing; this needle valve and assembly is small, like 1 ü inches long. Where as the one in the above link is large, in fact both the needles are the same size because they use the same packing-nut. I have pictures but when I try to upload them I'm told that the file is invalid,,,any suggestions on how I can get them to you???.
The number on the float chamber cover reads 310771 and under this number is the number 2. Im hoping one of you gurus can tell me what carb I have (and what year and model evinrude it iÃÂs from) so that I can order a rebuild kit and a new packing nut.
Many, many thanks in advance,
Bill
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